OF ARTS AND SCIENCES. 41 



ascending or nearly erect, thus invalidating Korthals' RennelUa as well 

 as his Trihrachya. In the arrangement of the Coffecece, therefore, it 

 would seem best to take the concretion of the flowers into account, and 

 to regard Morinda as the type of a distinct subtribe, in other respects 

 intermediate between the Ixorece and the Psychotriece. 



Besides a rather doubtful variety of Morinda umhellata (which in- 

 cludes M. tetrandra of Jack) from Tahiti, we have the following new 

 Oceanic species : — 



Morinda myrtifolia ( Gray, I. c.) : glaberrima ; ramis gracilibus 

 scandentibus ; stipulis in vaginam truncatam brevem connatis, foliis 

 sublonge petiolatis subcoriaceis nitidulis lanceolato- sen elliptico-oblongis 

 obtusis nunc obtuse acuminatis, venis primariis hand conspicuis axillis 

 nudis ; pedunculis terminalibus brevibus solitariis 2 - 4-nisve ; capitu- 

 lis plurifloris globosis ; tubo coroUre 4-fida3 intus villoso-barbato. — 

 Feejee Islands. — The ovule or seed in this and in 3f. mollis is semi- 

 anatropal ; in the two others, anatropal, and from near the base of the 

 cell : radicle inferior. 



Morinda lucida ( Gray, I. c.) : glabra, scandens ; stipulis in vagi- 

 nam brevem connatis, summis utrinque 1 - 2-cuspidatis ; foliis ovatis 

 et oblongo-lanceolatis acuminatis chartaceis supra lucidis venulis reticu- 

 latis, subtus opacis, venis primariis tantum perspicuis m axillis sajpius 

 barbellatis ; pedunculis (fructiferis) solitariis ternisve terminalibus pe- 

 tioles adasquantibus ; capitulis plurifloris ; syncarpio globoso pollicari. 

 — Feejee Islands. 



Morinda mollis ( Gray, I. c.) : scandens, undique velutino-pubes- 

 cens ; foliis membranaceis ovato- seu obovato-oblongis caudato-acumi- 

 natis basi sinu parvo subcordatis perspicue penniveniis ; pedunculis 

 plurimis in umbella terminali ; capitulis plurifloris ; syncarpio globoso 

 pubescente. — Feejee Islands. 



Morinda bucid^folia (Gray, I. c): glabra, scandens; stipulis 

 subdistinctis ; foliis obovato-cuneatis obtusis vel retusis coriaceis supra 

 nitidulis subtus venulis inter costas rectas prominulas crebre reticulatis ; 

 pedunculis plui'imis terminahbus ; capitulo globoso 7 - 10-floro. — Fee- 

 jee Islands. 



5. Psychotriece. 



The novelties of the collection belong to Myrmecodia, Hydnophytum, 

 Straussia (Coffea, § Straussia, DC), to the large genus Psychotria, to 

 Chasalia, and to a new genus oi Psychotrie(s (including Cephaelidece), 

 remarkable for the greatly-developed and corolliform limb of the calyx. 



vol. iv. 6 



